diff --git a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/Demo.java b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/Demo.java
new file mode 100644
index 0000000000..3c4b0cf556
--- /dev/null
+++ b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/Demo.java
@@ -0,0 +1,18 @@
+package org.apache.dolphinscheduler.api;
+
+import java.io.FileWriter;
+import java.io.Writer;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+public class Demo {
+
+    public static void main(String[] args) throws Exception{
+        Writer writer = new FileWriter("D:\\demo.txt");
+
+        for (int i = 0 ; i < 3000; i++){
+            writer.append("echo 日志打印测试" + (i+1) + "\r\n");
+        }
+        writer.close();
+    }
+}